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JEE Advance - Chemistry (2021 - Paper 1 Online - No. 16)

A mixture of two salts is used to prepare a solution S, which gives the following results :

JEE Advanced 2021 Paper 1 Online Chemistry - Isolation of Elements Question 10 English
The correct option(s) for the salt mixture is (are)
Pb(NO3)2 and Zn(NO3)2
Pb(NO3)2 and Bi(NO3)3
AgNO3 and Bi(NO3)3
Pb(NO3)2 and Hg(NO3)2

Explanation

Pb(NO3)2, Bi(NO3)3 and Zn(NO3)2 give white precipitate with dil. NaOH and dil. HCl. Complete reactions are as follows:

JEE Advanced 2021 Paper 1 Online Chemistry - Isolation of Elements Question 10 English Explanation 1
Whereas, AgNO3 and Hg(NO3)3 give ppt. of different colours.
JEE Advanced 2021 Paper 1 Online Chemistry - Isolation of Elements Question 10 English Explanation 2

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